e*thirteen Helix Race 12-Speed 13-52T Cassette - Grey Size:13-52 the 145mm-wide saddle offers great

the 145mm-wide saddle offers great pedaling support but is also easy to move around on

Adjustable strap closure

Size: 102 X 96 X 11 mmBody Material: magnesium extruded / CNC machinedSpindle: CNC machined cr-molyPedal Bearings: EVO+ systemPins: replaceable grip pins

Carrier: MIK rack

e*thirteen Helix Race 12-Speed 13-52T Cassette - Grey Size:13-52 the 145mm-wide saddle offers greatAt e*thirteen, we're always striving to bring something new to the table. That's why we created the Helix cassette line to offer unparalleled cross compatibility without sacrificing performance. As e bikes have become more popular, we set out to engineer a close ratio cassette specifically for them. Enter the Helix Race 13 52T a 12 speed close ratio cassette specifically engineered for steep terrain where climbing speeds are high and descents are